(WIP) feat: Add :scope and :root selectors

[run1t]

As said in #23 I thought the :root selector work. But after adding tests cases discussed with @petebacondarwin the implementation of :root from ESquery is not sufficient to cover the use cases defined below.

However I added the tests to cover the use cases.

Base example

function a() {
  function b() {
    return 'bar';
  }
  return 'foo';
};

Uses cases

:root

• Assuming we are in the root of the example:
  • ✅ Executing this query :root > FunctionDeclaration should return the function a
• Assuming we are in the BLOCK of the function a:
  • ✅ Executing this query :root > FunctionDeclaration should return the function a
  • ✅ Executing this query :root FunctionDeclaration should return the function a an function b

:scope

• Assuming we are in the root of the example:
  • ✅ Executing this query :scope > FunctionDeclaration should return the function a
• Assuming we are in the BLOCK of the function a:
  • ✅ Executing this query :scope > FunctionDeclaration should return the function b
  • ✅ Executing this query :scope FunctionDeclaration should return the function b

[run1t]

I got the :scope selector by moving the traverseChildren function in here. It's probably not the best way to do it.

[run1t]

I had a problem with the tests below. I don't know why but some times when I was launching the test the file.length was incrementing even if I didn't touch the ./tsconfig.json. Do I need to open an issue ?

[run1t]

I added this to be able to go back to the root node when the :root selector is matched.
It's seems incomplete as it will only work when the :root selector is in the left part of the selector AST root.

[run1t]

Unfortunatly I had to keep the esquery-scope in order to be able to run the ci

[auser]

Is this going to get merged in?

[phenomnomnominal]

Not until we get the upstream fix merged I'm afraid. I thought I did a review of the PR in the esquery repo, but it's vanished. I'll do it again and see if we can get @run1t's changes merged there.